San Diego: America’s Wildest City

Experience San Diego's dazzling biodiversity thriving among a human population of 3.3 million residents. From grebes' intricate rituals to orcas' thrilling hunts, witness nature's resilience and beauty amidst the urban sprawl.

These hummingbird chicks are ready to join the adults at the local feeders, where a predator lurks nearby: a roadrunner. Like the cartoon, the real roadrunner is clever -- and also a hunter.

Just off San Diego's shore, single-celled algae called dinoflagellates start to reproduce and if disturbed, a chemical reaction within the cell creates a tiny spark of light. When the conditions are right, the algae multiply and the coastal waters glow blue.

As the baby squirrels grow and start to venture outside their den, the growing colony draws the attention of hungry crows. The tiny kits must quickly learn about the dangers of these deadly birds.

In "San Diego: America's Wildest City," the creators take you behind the scenes of their ambitious two-year journey to capture the incredible biodiversity of this urban landscape. Despite the city's transformation by human development—dams, highways, and skyscrapers—the film reveals the resilience of wildlife in adapting to this new environment.